A control circuit and control method for hard disk power-on

Abstract

The invention discloses a control circuit for powering on a hard disk and a control method thereof. The control circuit includes: a power-on control module, a main power monitoring module and a switch group connected to the power-on control module; the main power monitoring module , used to monitor the state of the main power output by the power module, and send the monitoring signal to the power-on control module; the power-on control module is also used to judge the state of the main power output by the power module according to the monitoring signal; If the main power supply is not powered on, perform the reset operation, and delay until the main power supply is detected to be normal, then perform the initialization operation. The control circuit provided by the embodiment of the present invention avoids abnormal operation of the power-on control module due to rapid power-on and power-off, avoids the phenomenon that all hard disks are powered on at the same time, and improves the life of the hard disk.

Description

technical field [0001] The invention relates to the technical field of hard disk power supply, in particular to a control circuit and a control method for powering on a hard disk. Background technique [0002] In a large-bay storage system, the management method of time-sharing power-on of the hard disk needs to be used, because the mechanical hard disk has a large current of 3-5A during the power-on process, and the duration is about 8-10s, but when reading and writing normally, usually The current is less than 1A. If all the hard disks are powered on at the same time, a very high specification power supply module is required. Otherwise, the life and reliability of the power supply module will be affected, but the high specification power supply module will lead to over-design during normal operation. [0003] In the prior art, the power-on management method of the hard disk is as follows: the power module outputs the main power supply and the standby power supply to the sy...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a control circuit and a control method for powering on a hard disk, which is used to solve the problem in the prior art that the power-on and power-on sequences between the main power supply and the standby power supply are not standardized, so that the power supply of the whole machine can be quickly powered on and off. Electricity, causing the problem that the microcontroller cannot work normally

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